Automatic back-stop for vehicles.



PATENTED NOV. 6, 1906.

c. A. NOBLE. AUTOMATIC BACK STOP FOR VEHICLES.

APPLICATION FILED MAR. 24, 1906.

2 S,HEETSSHEET 1.

M. W@ W. a Z 6 WITNESSES ATTORNEYS PATENTED NOV. 6, 1906. O. A. NOBLE. AUTOMATIC BACK STOP FOR VEHICLES.

APPLICATION H LED 111113.24, 1906.

2 SHEHTSSHEET 2.

A TTOHNEYS W/ TNE SSE S UNITED STATES PATENT oEEIoE.

CLARENCE ALEXANDER NOBLE, OF CATSKILL, NEW YORK.

AUTOMATIC BACK-STOP FOR VE HICLES.

Specification of Letters Patent.

Patented. Nov. 6, 1906.

To all whom it may concern.

Be it known that I, CLARENCE ALEXANDER NOBLE, a citizen of the United States, and a resident of Catskill, in the county of Greene and State of New York, have invented anew and Improved Automatic Back-Stop for Vehicles, of which the following is a full, clear, and exact description.

The invention relates to automobiles and other vehicles, and more particularly to the means employed for preventing the vehicle ascending a hill from running backward in case the power is shut off.

The object of the invention is to provide a new and improved automatic back-stop for vehicles arranged to automatically stop the vehicle on a slopeto prevent it from running backward down the same and previous to the vehicle obtaining any momentum.

The invention consists of novel'features and parts and combinations of the same, which will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represent (1 in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is an end elevation of the improve,- ment as applied. Fig. 2 is an enlarged'sectional side elevation of the same on the line 2 2 of Fig. 3. Fig. 3 is an end View of the same. vation of the improvement applied to a wheel using a band-brake, the section being, on the line 4 4 of Fig. 5. Fig. 5 is an end view of thesame, parts beingbroken out.

Fig. 6 is an enlarged sectional side elevation of the improvement, showing the shoe in an inactive position. Fig. 7 is an enlarged transverse section of the same on the line 7 7 of Fig. 6, and Fig. 8 is a perspective view of the throw-off lever.

A band or a rim A is secured to the face 0 carried by a bracket E, attached to a stationary part of the vehicle,such, for in- Fig. 4 is a partly-sectional side ele-- the edge or outer face of the rim A, so that the plate G tends to hold the shoe C out of contact with the rim A as long asthe latter turns forwardly in the direction of the arrow a; but as soon as the vehicle goin up a hill comes to a stop and begins to start. ownward then the. rotation of the rim A in the inverse direction of the arrow 0 carries the plate G along, and in doing so the shoe C is moved into firm frictional contact with the rim A, so as to stop the rotation thereof, and consequently to revent the vehicle from running backward d bwn the hill and before the vehicle is capable of obtaining any dangerous momentum. i

In order to .yieldingly mount the plate G on the shoe C and to allow convenient adjustment of'the plate G relative to the rim A, the following 'device is 7 r0 ided, special reference'being had to Fig.7. Tw0 sets of .screwsor bolts H H. extend through .the

plate G and screw in. the shoeC, and on the said screws or bolts H H are coiled springs I and I, of which the s rings 1 press against the inner face of the "p ate G and in an out-'- ward direction thereon, while the springs I engage the outer face of the plate G and ress in an inward direction thereon. Now

y the operator adjusting the screws H H more or less tension can be given to thes rin s I I, so as to bring the inner face of tile p ate G in proper relation with the outer edge orthe face of the rim A. By the arrangement described the most minute adjustment can be given to the plate G, so that the latter is in contact with the rim A and with such force as not to impede the rotary motion of the rim A to any great extent, but at the same time to take action for throwing the shoe C in frictional contact with the rim A whenever the latter rotates, as above explained.

In order to insure a very 00d grip between the shoe C and the rim A, t e under side C of the shoe 0 may be rou hened, notched, or serrated, as will be readi y understood by reference td Fi 6.

when t e operator desires to back the vehicle, it is preferable to throw the shoe C away from the rim A. to allow -free return movement of the rim A, and for this purpose a suitable mechanism may be employed under the control of the operator in charge of the vehicle. As shown in the drawings, such mechanism may consist in a crank-arm J adapted to engage the rear end of the shoe C to swing the sameforwardly away from vthe rim A, (see Fig. 6,) and this crank-arm J has its crank-shaft J journaled in suitable bearing s carried by the bracket E, and on the crank-shaft J is secured an arm J connected by a suitable mechanism K with a lever L, arranged on the body of the vehicle and in charge and within convenient reach of the o erator seated in the vehicle. Thus when t e operator imparts a swinging motion to the lever L then a turning motion is given to the crank-shaft J, which, by the crank-arm J, swings the shoe 0 into a non-active position, as indicated in Fig. 6. A torsionspring J connected with the crank-shaft J, serves to return the latter to its normalposition as soon as the operator releases the lever L. v

In order to limit the swin ing motion of the I shoe 0 on the arm D, the atter is provided with a heel D adapted to enga e the back of the shoe C, it being understoo that when a swingin motion is given by the crank-arm 'J to the shoe C then the shoe finally engages the heel D and on the further forward swinging motion of the shoe C a swinging motion is given to the arm D, and when the lever L is released, that is, the arm D and the shoe 0 readily return totheir normal osition. A spring 1), held on the arm bears against the bracket E to insure a quick return movement of the arm D after the lever L is released by the o erator. The lower rearward corner'G of t e plate G ispreferably curved outwardly to insure a ready return swingin of the s oeO, and the plate G, carried there y,after the lever L is released, as above described.

As illustrated in Figs. 1, 2, 3, 6, and 7, the

with the exterior surface of the rim A and, as illustrated in Figs. 4 and 5, the said shoe 0 operates in conjunction with the inner sur-- face of the rim A, but in both cases the con struction and action of the automatic backstop is the samethat is, the shoe (3 is actuated by means of'the plate G from the rim A whenever the latter turns in-the inverse direction of the arrow 0; and as long as the crank-arm J is in inactive position.

The automatic back-etc shown and described is very simple an. durable in construction, composed of comparatively few parts, and not liable to get easily out of order.

Having thus described my invention, I claim as new (and desire to secure by Letters Patent 1. An automatic backstop. for vehicles comprisin a rim on one of the rotating parts of the vehicle, a shoe pivoted adjacent to the periphery of the said rim, and means on the shoe controlled by the edge of, the rim to throw the shoe in engagement with the rim on the turning of the said vehicle part in the reverse direction.

2. An automatic back-stop for vehicles comprising a rim on one of the rotating parts of the vehicle, a shoe for peripheral engagement with the said rim, means on the shoe controlled by the edge of the rim to throw the shoe in engagement with the rim on the turning of the said vehicle part in the reverse direction, and manually controlled means for throwing the shoe and holding it out of engagement with the said rim.

3. An automatic back-stop for vehicles comprising a rim on one of the rotating parts of the vehicle, a shoe forperipheral engagement with the said rim, and a spring-pressed plate secured to the side of the shoe and in engagement with the edge of the rim for controlling the engagement of the shoe with the run.

4. An automatic back-stop for vehicles comprising a rim on one of the rotating parts of the vehicle, a shoe for peripheral enga ement with the said rim, screws held on t e said shoe, a plate mounted to slide transversely on the said screws, and s rin s held on the said screws and engaging the p ate on opposite faces thereof.

5. An automatic back-stop for vehicles comprising a rim on one end of the vehicle wheels, a ivoted arm, a shoe fulcrumed on one end 0' the said arm and adapted to engage the said rim peripherally, a counterbalancing-weight on the other end of the said arm, and a yieldingly-mounted plate on one side of the said shoe and engaging the face of the said rim."

6. An automatic back-sto for vehicles. comprising a rim on one o the vehicleone end o the said arm and adapted to engage the said rim peripherally, a' counterbalancing-weight on the other end of the said arm, ayieldingly-mounted plate on one side of the said shoe and en aging the face ofthe said rim, and a bell-crani lever under the control of the operator and adapted to-engage the said shoe to throw the latter into an inoperative position.

7. An automatic back-etc comprising a rim on one 0 wheels, a one end o for vehicles the vehiclepivoted'arm, a shoe fulcrumed on the said arm and adapted to enwheels, a ivoted arm, a shoe fulcrumed on shoe 0 is adapted to operate in OOlljIlllCtlOlL gage the said rim peripheraily, means'on the I name to this specification in the presence of said arm to limit the swinging motion of the two subscribing witnesses.

said shoe, :1 counterbalancing-weight on the other end of the said arm, and-a, yieldin lyv CLARENCE ALEXANDER NOBLE mounted plate on one side of the said s 0e Witnesses:

and engaging the face of the said-rim. PERoIvAL GoLDIN, In testimony whereof I have signed my WILLIS P; GoLDIN. 

